Fast Synthesis of Hierarchical Co(OH)2 Nanosheet Hollow Spheres with Enhanced Glucose Sensing

被引：25

作者：

Xu, Chufeng ^{[1
]}

Cao, Yang ^{[1
]}

Chen, Yong ^{[1
]}

Huang, Wei ^{[1
]}

Chen, Delun ^{[1
]}

Huang, Qingyou ^{[1
]}

Tu, Jinchun ^{[1
]}

机构：

[1] Hainan Univ, Coll Mat & Chem Engn, Minist Educ, Key Lab Trop Biol Resources, Haikou, Peoples R China

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2016年 / 19期

基金：

中国国家自然科学基金;

关键词：

Electrochemistry; Hierarchical structures; Nanostructures; Sensors; Cobalt; COBALT HYDROXIDE; HIGH-PERFORMANCE; ALPHA-COBALT; OXIDE; ELECTRODE; SENSOR; SUPERCAPACITOR; SENSITIVITY; NANOFIBERS; BIOSENSORS;

D O I：

10.1002/ejic.201600298

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this report, hierarchical cobalt hydroxide [Co(OH)(2)] hollow spheres composed of nanosheets were synthesized by fast etching of polycrystalline cuprous oxide and were then applied for the nonenzymatic electrochemical detection of glucose. The fabricated hierarchical Co(OH)(2) nanosheet hollow spheres were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and selected area electron diffraction. The electrochemical performance of the hierarchical Co(OH)(2) nanosheet hollow spheres modified electrode to detect glucose was investigated by cyclic voltammetry. These sensors exhibited excellent electrocatalytic activity toward glucose, with a response time of less than 5 s. The calibration plot is linear over the wide concentration range of 1 mu m to 0.13 mm, with a high sensitivity of 925.21 mu Amm(-1)cm(-2), a correlation coefficient of 0.9942, and a detection limit of 0.93 mu m (signal to noise: 3). The results demonstrate that hierarchical Co(OH)(2) nanosheet hollow spheres play a vital role in the development of electrochemical sensors for nonenzymatic glucose detection.

引用

页码：3163 / 3168

页数：6

共 36 条

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